+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * Copyright 2010 VMware, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
#ifndef SP_TEX_SAMPLE_H
#define SP_TEX_SAMPLE_H
-struct tgsi_sampler;
+#include "tgsi/tgsi_exec.h"
+
+struct sp_sampler_variant;
+
+typedef void (*wrap_nearest_func)(const float s[4],
+ unsigned size,
+ int icoord[4]);
+
+typedef void (*wrap_linear_func)(const float s[4],
+ unsigned size,
+ int icoord0[4],
+ int icoord1[4],
+ float w[4]);
+
+typedef float (*compute_lambda_func)(const struct sp_sampler_variant *sampler,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE]);
+
+typedef void (*filter_func)(struct tgsi_sampler *tgsi_sampler,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
+ const float c0[TGSI_QUAD_SIZE],
+ enum tgsi_sampler_control control,
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE]);
+
+
+union sp_sampler_key {
+ struct {
+ unsigned target:3;
+ unsigned is_pot:1;
+ unsigned processor:2;
+ unsigned unit:4;
+ unsigned swizzle_r:3;
+ unsigned swizzle_g:3;
+ unsigned swizzle_b:3;
+ unsigned swizzle_a:3;
+ unsigned pad:10;
+ } bits;
+ unsigned value;
+};
+
+/**
+ * Subclass of tgsi_sampler
+ */
+struct sp_sampler_variant
+{
+ struct tgsi_sampler base; /**< base class */
+
+ union sp_sampler_key key;
+
+ /* The owner of this struct:
+ */
+ const struct pipe_sampler_state *sampler;
+
+
+ /* Currently bound texture:
+ */
+ const struct pipe_sampler_view *view;
+ struct softpipe_tex_tile_cache *cache;
+
+ unsigned processor;
+
+ /* For sp_get_samples_2d_linear_POT:
+ */
+ unsigned xpot;
+ unsigned ypot;
+ unsigned level;
+
+ unsigned faces[4];
+
+ wrap_nearest_func nearest_texcoord_s;
+ wrap_nearest_func nearest_texcoord_t;
+ wrap_nearest_func nearest_texcoord_p;
+
+ wrap_linear_func linear_texcoord_s;
+ wrap_linear_func linear_texcoord_t;
+ wrap_linear_func linear_texcoord_p;
+
+ filter_func min_img_filter;
+ filter_func mag_img_filter;
+
+ compute_lambda_func compute_lambda;
+
+ filter_func mip_filter;
+ filter_func compare;
+ filter_func sample_target;
+
+ /* Linked list:
+ */
+ struct sp_sampler_variant *next;
+};
+
+struct sp_sampler;
+
+/* Create a sampler variant for a given set of non-orthogonal state. Currently the
+ */
+struct sp_sampler_variant *
+sp_create_sampler_variant( const struct pipe_sampler_state *sampler,
+ const union sp_sampler_key key );
+
+void sp_sampler_variant_bind_view( struct sp_sampler_variant *variant,
+ struct softpipe_tex_tile_cache *tex_cache,
+ const struct pipe_sampler_view *view );
+
+void sp_sampler_variant_destroy( struct sp_sampler_variant * );
+
+
+static INLINE struct sp_sampler_variant *
+sp_sampler_variant(const struct tgsi_sampler *sampler)
+{
+ return (struct sp_sampler_variant *) sampler;
+}
extern void
-sp_get_samples(struct tgsi_sampler *sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
+sp_get_samples(struct tgsi_sampler *tgsi_sampler,
+ const float s[TGSI_QUAD_SIZE],
+ const float t[TGSI_QUAD_SIZE],
+ const float p[TGSI_QUAD_SIZE],
float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE]);
+ float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE]);
#endif /* SP_TEX_SAMPLE_H */
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